19916208

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{10639}}^1$

素因数の和:10666

約数の個数: 60

約数和(自身を含む): 60030880

約数和(自身を除く): 40114672

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, 208, 234, 312, 468, 624, 936, 1872, 10639, 21278, 31917, 42556, 63834, 85112, 95751, 127668, 138307, 170224, 191502, 255336, 276614, 383004, 414921, 510672, 553228, 766008, 829842, 1106456, 1244763, 1532016, 1659684, 2212912, 2489526, 3319368, 4979052, 6638736, 9958104, 19916208]

約数ペア:

[(1, 19916208), (2, 9958104), (3, 6638736), (4, 4979052), (6, 3319368), (8, 2489526), (9, 2212912), (12, 1659684), (13, 1532016), (16, 1244763), (18, 1106456), (24, 829842), (26, 766008), (36, 553228), (39, 510672), (48, 414921), (52, 383004), (72, 276614), (78, 255336), (104, 191502), (117, 170224), (144, 138307), (156, 127668), (208, 95751), (234, 85112), (312, 63834), (468, 42556), (624, 31917), (936, 21278), (1872, 10639)]