21380892

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:203

約数の個数: 96

約数和(自身を含む): 57576960

約数和(自身を除く): 36196068

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 59, 69, 78, 92, 101, 118, 138, 156, 177, 202, 236, 276, 299, 303, 354, 404, 598, 606, 708, 767, 897, 1196, 1212, 1313, 1357, 1534, 1794, 2301, 2323, 2626, 2714, 3068, 3588, 3939, 4071, 4602, 4646, 5252, 5428, 5959, 6969, 7878, 8142, 9204, 9292, 11918, 13938, 15756, 16284, 17641, 17877, 23836, 27876, 30199, 35282, 35754, 52923, 60398, 70564, 71508, 77467, 90597, 105846, 120796, 137057, 154934, 181194, 211692, 232401, 274114, 309868, 362388, 411171, 464802, 548228, 822342, 929604, 1644684, 1781741, 3563482, 5345223, 7126964, 10690446, 21380892]

約数ペア:

[(1, 21380892), (2, 10690446), (3, 7126964), (4, 5345223), (6, 3563482), (12, 1781741), (13, 1644684), (23, 929604), (26, 822342), (39, 548228), (46, 464802), (52, 411171), (59, 362388), (69, 309868), (78, 274114), (92, 232401), (101, 211692), (118, 181194), (138, 154934), (156, 137057), (177, 120796), (202, 105846), (236, 90597), (276, 77467), (299, 71508), (303, 70564), (354, 60398), (404, 52923), (598, 35754), (606, 35282), (708, 30199), (767, 27876), (897, 23836), (1196, 17877), (1212, 17641), (1313, 16284), (1357, 15756), (1534, 13938), (1794, 11918), (2301, 9292), (2323, 9204), (2626, 8142), (2714, 7878), (3068, 6969), (3588, 5959), (3939, 5428), (4071, 5252), (4602, 4646)]