28217784

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1663}}^1$

素因数の和:1780

約数の個数: 64

約数和(自身を含む): 81469440

約数和(自身を除く): 53251656

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 101, 168, 202, 303, 404, 606, 707, 808, 1212, 1414, 1663, 2121, 2424, 2828, 3326, 4242, 4989, 5656, 6652, 8484, 9978, 11641, 13304, 16968, 19956, 23282, 34923, 39912, 46564, 69846, 93128, 139692, 167963, 279384, 335926, 503889, 671852, 1007778, 1175741, 1343704, 2015556, 2351482, 3527223, 4031112, 4702964, 7054446, 9405928, 14108892, 28217784]

約数ペア:

[(1, 28217784), (2, 14108892), (3, 9405928), (4, 7054446), (6, 4702964), (7, 4031112), (8, 3527223), (12, 2351482), (14, 2015556), (21, 1343704), (24, 1175741), (28, 1007778), (42, 671852), (56, 503889), (84, 335926), (101, 279384), (168, 167963), (202, 139692), (303, 93128), (404, 69846), (606, 46564), (707, 39912), (808, 34923), (1212, 23282), (1414, 19956), (1663, 16968), (2121, 13304), (2424, 11641), (2828, 9978), (3326, 8484), (4242, 6652), (4989, 5656)]