21357882

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1$

素因数の和:117

約数の個数: 144

約数和(自身を含む): 61663680

約数和(自身を除く): 40305798

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 17, 18, 21, 26, 34, 39, 42, 51, 59, 63, 78, 91, 102, 117, 118, 119, 126, 153, 169, 177, 182, 221, 234, 238, 273, 306, 338, 354, 357, 413, 442, 507, 531, 546, 663, 714, 767, 819, 826, 1003, 1014, 1062, 1071, 1183, 1239, 1326, 1521, 1534, 1547, 1638, 1989, 2006, 2142, 2301, 2366, 2478, 2873, 3009, 3042, 3094, 3549, 3717, 3978, 4602, 4641, 5369, 5746, 6018, 6903, 7021, 7098, 7434, 8619, 9027, 9282, 9971, 10647, 10738, 13039, 13806, 13923, 14042, 16107, 17238, 18054, 19942, 20111, 21063, 21294, 25857, 26078, 27846, 29913, 32214, 39117, 40222, 42126, 48321, 51714, 59826, 60333, 63189, 69797, 78234, 89739, 91273, 96642, 117351, 120666, 126378, 139594, 169507, 179478, 180999, 182546, 209391, 234702, 273819, 339014, 361998, 418782, 508521, 547638, 628173, 821457, 1017042, 1186549, 1256346, 1525563, 1642914, 2373098, 3051126, 3559647, 7119294, 10678941, 21357882]

約数ペア:

[(1, 21357882), (2, 10678941), (3, 7119294), (6, 3559647), (7, 3051126), (9, 2373098), (13, 1642914), (14, 1525563), (17, 1256346), (18, 1186549), (21, 1017042), (26, 821457), (34, 628173), (39, 547638), (42, 508521), (51, 418782), (59, 361998), (63, 339014), (78, 273819), (91, 234702), (102, 209391), (117, 182546), (118, 180999), (119, 179478), (126, 169507), (153, 139594), (169, 126378), (177, 120666), (182, 117351), (221, 96642), (234, 91273), (238, 89739), (273, 78234), (306, 69797), (338, 63189), (354, 60333), (357, 59826), (413, 51714), (442, 48321), (507, 42126), (531, 40222), (546, 39117), (663, 32214), (714, 29913), (767, 27846), (819, 26078), (826, 25857), (1003, 21294), (1014, 21063), (1062, 20111), (1071, 19942), (1183, 18054), (1239, 17238), (1326, 16107), (1521, 14042), (1534, 13923), (1547, 13806), (1638, 13039), (1989, 10738), (2006, 10647), (2142, 9971), (2301, 9282), (2366, 9027), (2478, 8619), (2873, 7434), (3009, 7098), (3042, 7021), (3094, 6903), (3549, 6018), (3717, 5746), (3978, 5369), (4602, 4641)]