21530184

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{457}}^1$

素因数の和:630

約数の個数: 64

約数和(自身を含む): 58477440

約数和(自身を除く): 36947256

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 151, 156, 302, 312, 453, 457, 604, 906, 914, 1208, 1371, 1812, 1828, 1963, 2742, 3624, 3656, 3926, 5484, 5889, 5941, 7852, 10968, 11778, 11882, 15704, 17823, 23556, 23764, 35646, 47112, 47528, 69007, 71292, 138014, 142584, 207021, 276028, 414042, 552056, 828084, 897091, 1656168, 1794182, 2691273, 3588364, 5382546, 7176728, 10765092, 21530184]

約数ペア:

[(1, 21530184), (2, 10765092), (3, 7176728), (4, 5382546), (6, 3588364), (8, 2691273), (12, 1794182), (13, 1656168), (24, 897091), (26, 828084), (39, 552056), (52, 414042), (78, 276028), (104, 207021), (151, 142584), (156, 138014), (302, 71292), (312, 69007), (453, 47528), (457, 47112), (604, 35646), (906, 23764), (914, 23556), (1208, 17823), (1371, 15704), (1812, 11882), (1828, 11778), (1963, 10968), (2742, 7852), (3624, 5941), (3656, 5889), (3926, 5484)]