18651984

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:516

約数の個数: 80

約数和(自身を含む): 52746624

約数和(自身を除く): 34094640

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 71, 78, 104, 142, 156, 208, 213, 284, 312, 421, 426, 568, 624, 842, 852, 923, 1136, 1263, 1684, 1704, 1846, 2526, 2769, 3368, 3408, 3692, 5052, 5473, 5538, 6736, 7384, 10104, 10946, 11076, 14768, 16419, 20208, 21892, 22152, 29891, 32838, 43784, 44304, 59782, 65676, 87568, 89673, 119564, 131352, 179346, 239128, 262704, 358692, 388583, 478256, 717384, 777166, 1165749, 1434768, 1554332, 2331498, 3108664, 4662996, 6217328, 9325992, 18651984]

約数ペア:

[(1, 18651984), (2, 9325992), (3, 6217328), (4, 4662996), (6, 3108664), (8, 2331498), (12, 1554332), (13, 1434768), (16, 1165749), (24, 777166), (26, 717384), (39, 478256), (48, 388583), (52, 358692), (71, 262704), (78, 239128), (104, 179346), (142, 131352), (156, 119564), (208, 89673), (213, 87568), (284, 65676), (312, 59782), (421, 44304), (426, 43784), (568, 32838), (624, 29891), (842, 22152), (852, 21892), (923, 20208), (1136, 16419), (1263, 14768), (1684, 11076), (1704, 10946), (1846, 10104), (2526, 7384), (2769, 6736), (3368, 5538), (3408, 5473), (3692, 5052)]