28219984

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{643}}^1$

素因数の和:875

約数の個数: 40

約数和(自身を含む): 59253152

約数和(自身を除く): 31033168

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 211, 422, 643, 844, 1286, 1688, 2572, 2743, 3376, 5144, 5486, 8359, 10288, 10972, 16718, 21944, 33436, 43888, 66872, 133744, 135673, 271346, 542692, 1085384, 1763749, 2170768, 3527498, 7054996, 14109992, 28219984]

約数ペア:

[(1, 28219984), (2, 14109992), (4, 7054996), (8, 3527498), (13, 2170768), (16, 1763749), (26, 1085384), (52, 542692), (104, 271346), (208, 135673), (211, 133744), (422, 66872), (643, 43888), (844, 33436), (1286, 21944), (1688, 16718), (2572, 10972), (2743, 10288), (3376, 8359), (5144, 5486)]