19657616

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1831}}^1$

素因数の和:1911

約数の個数: 40

約数和(自身を含む): 42253248

約数和(自身を除く): 22595632

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 61, 88, 122, 176, 244, 488, 671, 976, 1342, 1831, 2684, 3662, 5368, 7324, 10736, 14648, 20141, 29296, 40282, 80564, 111691, 161128, 223382, 322256, 446764, 893528, 1228601, 1787056, 2457202, 4914404, 9828808, 19657616]

約数ペア:

[(1, 19657616), (2, 9828808), (4, 4914404), (8, 2457202), (11, 1787056), (16, 1228601), (22, 893528), (44, 446764), (61, 322256), (88, 223382), (122, 161128), (176, 111691), (244, 80564), (488, 40282), (671, 29296), (976, 20141), (1342, 14648), (1831, 10736), (2684, 7324), (3662, 5368)]