20996424

素因数分解:

$2^3\times 3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:475

約数の個数: 96

約数和(自身を含む): 61401600

約数和(自身を除く): 40405176

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 31, 36, 46, 62, 69, 72, 92, 93, 124, 138, 184, 186, 207, 248, 276, 279, 372, 409, 414, 552, 558, 713, 744, 818, 828, 1116, 1227, 1426, 1636, 1656, 2139, 2232, 2454, 2852, 3272, 3681, 4278, 4908, 5704, 6417, 7362, 8556, 9407, 9816, 12679, 12834, 14724, 17112, 18814, 25358, 25668, 28221, 29448, 37628, 38037, 50716, 51336, 56442, 75256, 76074, 84663, 101432, 112884, 114111, 152148, 169326, 225768, 228222, 291617, 304296, 338652, 456444, 583234, 677304, 874851, 912888, 1166468, 1749702, 2332936, 2624553, 3499404, 5249106, 6998808, 10498212, 20996424]

約数ペア:

[(1, 20996424), (2, 10498212), (3, 6998808), (4, 5249106), (6, 3499404), (8, 2624553), (9, 2332936), (12, 1749702), (18, 1166468), (23, 912888), (24, 874851), (31, 677304), (36, 583234), (46, 456444), (62, 338652), (69, 304296), (72, 291617), (92, 228222), (93, 225768), (124, 169326), (138, 152148), (184, 114111), (186, 112884), (207, 101432), (248, 84663), (276, 76074), (279, 75256), (372, 56442), (409, 51336), (414, 50716), (552, 38037), (558, 37628), (713, 29448), (744, 28221), (818, 25668), (828, 25358), (1116, 18814), (1227, 17112), (1426, 14724), (1636, 12834), (1656, 12679), (2139, 9816), (2232, 9407), (2454, 8556), (2852, 7362), (3272, 6417), (3681, 5704), (4278, 4908)]