19660576

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{283}}^1$

素因数の和:473

約数の個数: 48

約数和(自身を含む): 42081984

約数和(自身を除く): 22421408

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 167, 208, 283, 334, 416, 566, 668, 1132, 1336, 2171, 2264, 2672, 3679, 4342, 4528, 5344, 7358, 8684, 9056, 14716, 17368, 29432, 34736, 47261, 58864, 69472, 94522, 117728, 189044, 378088, 614393, 756176, 1228786, 1512352, 2457572, 4915144, 9830288, 19660576]

約数ペア:

[(1, 19660576), (2, 9830288), (4, 4915144), (8, 2457572), (13, 1512352), (16, 1228786), (26, 756176), (32, 614393), (52, 378088), (104, 189044), (167, 117728), (208, 94522), (283, 69472), (334, 58864), (416, 47261), (566, 34736), (668, 29432), (1132, 17368), (1336, 14716), (2171, 9056), (2264, 8684), (2672, 7358), (3679, 5344), (4342, 4528)]