21487284

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{937}}^1$

素因数の和:974

約数の個数: 108

約数和(自身を含む): 68115684

約数和(自身を除く): 46628400

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 49, 52, 63, 78, 84, 91, 98, 117, 126, 147, 156, 182, 196, 234, 252, 273, 294, 364, 441, 468, 546, 588, 637, 819, 882, 937, 1092, 1274, 1638, 1764, 1874, 1911, 2548, 2811, 3276, 3748, 3822, 5622, 5733, 6559, 7644, 8433, 11244, 11466, 12181, 13118, 16866, 19677, 22932, 24362, 26236, 33732, 36543, 39354, 45913, 48724, 59031, 73086, 78708, 85267, 91826, 109629, 118062, 137739, 146172, 170534, 183652, 219258, 236124, 255801, 275478, 341068, 413217, 438516, 511602, 550956, 596869, 767403, 826434, 1023204, 1193738, 1534806, 1652868, 1790607, 2387476, 3069612, 3581214, 5371821, 7162428, 10743642, 21487284]

約数ペア:

[(1, 21487284), (2, 10743642), (3, 7162428), (4, 5371821), (6, 3581214), (7, 3069612), (9, 2387476), (12, 1790607), (13, 1652868), (14, 1534806), (18, 1193738), (21, 1023204), (26, 826434), (28, 767403), (36, 596869), (39, 550956), (42, 511602), (49, 438516), (52, 413217), (63, 341068), (78, 275478), (84, 255801), (91, 236124), (98, 219258), (117, 183652), (126, 170534), (147, 146172), (156, 137739), (182, 118062), (196, 109629), (234, 91826), (252, 85267), (273, 78708), (294, 73086), (364, 59031), (441, 48724), (468, 45913), (546, 39354), (588, 36543), (637, 33732), (819, 26236), (882, 24362), (937, 22932), (1092, 19677), (1274, 16866), (1638, 13118), (1764, 12181), (1874, 11466), (1911, 11244), (2548, 8433), (2811, 7644), (3276, 6559), (3748, 5733), (3822, 5622)]