21062209220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1975817}}^1$

素因数の和:1975880

約数の個数: 48

約数和(自身を含む): 48794801328

約数和(自身を除く): 27732592108

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 2132, 2665, 5330, 10660, 1975817, 3951634, 7903268, 9879085, 19758170, 25685621, 39516340, 51371242, 81008497, 102742484, 128428105, 162016994, 256856210, 324033988, 405042485, 513712420, 810084970, 1053110461, 1620169940, 2106220922, 4212441844, 5265552305, 10531104610, 21062209220]

約数ペア:

[(1, 21062209220), (2, 10531104610), (4, 5265552305), (5, 4212441844), (10, 2106220922), (13, 1620169940), (20, 1053110461), (26, 810084970), (41, 513712420), (52, 405042485), (65, 324033988), (82, 256856210), (130, 162016994), (164, 128428105), (205, 102742484), (260, 81008497), (410, 51371242), (533, 39516340), (820, 25685621), (1066, 19758170), (2132, 9879085), (2665, 7903268), (5330, 3951634), (10660, 1975817)]