19812208

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{431}}^1$

素因数の和:482

約数の個数: 60

約数和(自身を含む): 44113248

約数和(自身を除く): 24301040

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 169, 208, 221, 272, 338, 431, 442, 676, 862, 884, 1352, 1724, 1768, 2704, 2873, 3448, 3536, 5603, 5746, 6896, 7327, 11206, 11492, 14654, 22412, 22984, 29308, 44824, 45968, 58616, 72839, 89648, 95251, 117232, 145678, 190502, 291356, 381004, 582712, 762008, 1165424, 1238263, 1524016, 2476526, 4953052, 9906104, 19812208]

約数ペア:

[(1, 19812208), (2, 9906104), (4, 4953052), (8, 2476526), (13, 1524016), (16, 1238263), (17, 1165424), (26, 762008), (34, 582712), (52, 381004), (68, 291356), (104, 190502), (136, 145678), (169, 117232), (208, 95251), (221, 89648), (272, 72839), (338, 58616), (431, 45968), (442, 44824), (676, 29308), (862, 22984), (884, 22412), (1352, 14654), (1724, 11492), (1768, 11206), (2704, 7327), (2873, 6896), (3448, 5746), (3536, 5603)]