21993426

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{463}}^1$

素因数の和:520

約数の個数: 96

約数和(自身を含む): 60802560

約数和(自身を除く): 38809134

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 29, 39, 42, 58, 63, 78, 87, 91, 117, 126, 174, 182, 203, 234, 261, 273, 377, 406, 463, 522, 546, 609, 754, 819, 926, 1131, 1218, 1389, 1638, 1827, 2262, 2639, 2778, 3241, 3393, 3654, 4167, 5278, 6019, 6482, 6786, 7917, 8334, 9723, 12038, 13427, 15834, 18057, 19446, 23751, 26854, 29169, 36114, 40281, 42133, 47502, 54171, 58338, 80562, 84266, 93989, 108342, 120843, 126399, 174551, 187978, 241686, 252798, 281967, 349102, 379197, 523653, 563934, 758394, 845901, 1047306, 1221857, 1570959, 1691802, 2443714, 3141918, 3665571, 7331142, 10996713, 21993426]

約数ペア:

[(1, 21993426), (2, 10996713), (3, 7331142), (6, 3665571), (7, 3141918), (9, 2443714), (13, 1691802), (14, 1570959), (18, 1221857), (21, 1047306), (26, 845901), (29, 758394), (39, 563934), (42, 523653), (58, 379197), (63, 349102), (78, 281967), (87, 252798), (91, 241686), (117, 187978), (126, 174551), (174, 126399), (182, 120843), (203, 108342), (234, 93989), (261, 84266), (273, 80562), (377, 58338), (406, 54171), (463, 47502), (522, 42133), (546, 40281), (609, 36114), (754, 29169), (819, 26854), (926, 23751), (1131, 19446), (1218, 18057), (1389, 15834), (1638, 13427), (1827, 12038), (2262, 9723), (2639, 8334), (2778, 7917), (3241, 6786), (3393, 6482), (3654, 6019), (4167, 5278)]