21233940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3889}}^1$

素因数の和:3921

約数の個数: 96

約数和(自身を含む): 73194240

約数和(自身を除く): 51960300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 3889, 5460, 7778, 11667, 15556, 19445, 23334, 27223, 38890, 46668, 50557, 54446, 58335, 77780, 81669, 101114, 108892, 116670, 136115, 151671, 163338, 202228, 233340, 252785, 272230, 303342, 326676, 353899, 408345, 505570, 544460, 606684, 707798, 758355, 816690, 1011140, 1061697, 1415596, 1516710, 1633380, 1769495, 2123394, 3033420, 3538990, 4246788, 5308485, 7077980, 10616970, 21233940]

約数ペア:

[(1, 21233940), (2, 10616970), (3, 7077980), (4, 5308485), (5, 4246788), (6, 3538990), (7, 3033420), (10, 2123394), (12, 1769495), (13, 1633380), (14, 1516710), (15, 1415596), (20, 1061697), (21, 1011140), (26, 816690), (28, 758355), (30, 707798), (35, 606684), (39, 544460), (42, 505570), (52, 408345), (60, 353899), (65, 326676), (70, 303342), (78, 272230), (84, 252785), (91, 233340), (105, 202228), (130, 163338), (140, 151671), (156, 136115), (182, 116670), (195, 108892), (210, 101114), (260, 81669), (273, 77780), (364, 58335), (390, 54446), (420, 50557), (455, 46668), (546, 38890), (780, 27223), (910, 23334), (1092, 19445), (1365, 15556), (1820, 11667), (2730, 7778), (3889, 5460)]