21915344

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{521}}^1$

素因数の和:779

約数の個数: 40

約数和(自身を含む): 46604160

約数和(自身を除く): 24688816

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 239, 478, 521, 956, 1042, 1912, 2084, 2629, 3824, 4168, 5258, 5731, 8336, 10516, 11462, 21032, 22924, 42064, 45848, 91696, 124519, 249038, 498076, 996152, 1369709, 1992304, 2739418, 5478836, 10957672, 21915344]

約数ペア:

[(1, 21915344), (2, 10957672), (4, 5478836), (8, 2739418), (11, 1992304), (16, 1369709), (22, 996152), (44, 498076), (88, 249038), (176, 124519), (239, 91696), (478, 45848), (521, 42064), (956, 22924), (1042, 21032), (1912, 11462), (2084, 10516), (2629, 8336), (3824, 5731), (4168, 5258)]