19911009456

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^2\times {\mathrm{818171}}^1$

素因数の和:818211

約数の個数: 90

約数和(自身を含む): 60339366828

約数和(自身を除く): 40428357372

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 169, 208, 234, 312, 338, 468, 507, 624, 676, 936, 1014, 1352, 1521, 1872, 2028, 2704, 3042, 4056, 6084, 8112, 12168, 24336, 818171, 1636342, 2454513, 3272684, 4909026, 6545368, 7363539, 9818052, 10636223, 13090736, 14727078, 19636104, 21272446, 29454156, 31908669, 39272208, 42544892, 58908312, 63817338, 85089784, 95726007, 117816624, 127634676, 138270899, 170179568, 191452014, 255269352, 276541798, 382904028, 414812697, 510538704, 553083596, 765808056, 829625394, 1106167192, 1244438091, 1531616112, 1659250788, 2212334384, 2488876182, 3318501576, 4977752364, 6637003152, 9955504728, 19911009456]

約数ペア:

[(1, 19911009456), (2, 9955504728), (3, 6637003152), (4, 4977752364), (6, 3318501576), (8, 2488876182), (9, 2212334384), (12, 1659250788), (13, 1531616112), (16, 1244438091), (18, 1106167192), (24, 829625394), (26, 765808056), (36, 553083596), (39, 510538704), (48, 414812697), (52, 382904028), (72, 276541798), (78, 255269352), (104, 191452014), (117, 170179568), (144, 138270899), (156, 127634676), (169, 117816624), (208, 95726007), (234, 85089784), (312, 63817338), (338, 58908312), (468, 42544892), (507, 39272208), (624, 31908669), (676, 29454156), (936, 21272446), (1014, 19636104), (1352, 14727078), (1521, 13090736), (1872, 10636223), (2028, 9818052), (2704, 7363539), (3042, 6545368), (4056, 4909026), (6084, 3272684), (8112, 2454513), (12168, 1636342), (24336, 818171)]