18721944

素因数分解:

$2^3\times 3^2\times {\mathrm{67}}^1\times {\mathrm{3881}}^1$

素因数の和:3960

約数の個数: 48

約数和(自身を含む): 51475320

約数和(自身を除く): 32753376

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 67, 72, 134, 201, 268, 402, 536, 603, 804, 1206, 1608, 2412, 3881, 4824, 7762, 11643, 15524, 23286, 31048, 34929, 46572, 69858, 93144, 139716, 260027, 279432, 520054, 780081, 1040108, 1560162, 2080216, 2340243, 3120324, 4680486, 6240648, 9360972, 18721944]

約数ペア:

[(1, 18721944), (2, 9360972), (3, 6240648), (4, 4680486), (6, 3120324), (8, 2340243), (9, 2080216), (12, 1560162), (18, 1040108), (24, 780081), (36, 520054), (67, 279432), (72, 260027), (134, 139716), (201, 93144), (268, 69858), (402, 46572), (536, 34929), (603, 31048), (804, 23286), (1206, 15524), (1608, 11643), (2412, 7762), (3881, 4824)]