21319620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2207}}^1$

素因数の和:2249

約数の個数: 96

約数和(自身を含む): 71221248

約数和(自身を除く): 49901628

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 105, 115, 138, 140, 161, 210, 230, 276, 322, 345, 420, 460, 483, 644, 690, 805, 966, 1380, 1610, 1932, 2207, 2415, 3220, 4414, 4830, 6621, 8828, 9660, 11035, 13242, 15449, 22070, 26484, 30898, 33105, 44140, 46347, 50761, 61796, 66210, 77245, 92694, 101522, 132420, 152283, 154490, 185388, 203044, 231735, 253805, 304566, 308980, 355327, 463470, 507610, 609132, 710654, 761415, 926940, 1015220, 1065981, 1421308, 1522830, 1776635, 2131962, 3045660, 3553270, 4263924, 5329905, 7106540, 10659810, 21319620]

約数ペア:

[(1, 21319620), (2, 10659810), (3, 7106540), (4, 5329905), (5, 4263924), (6, 3553270), (7, 3045660), (10, 2131962), (12, 1776635), (14, 1522830), (15, 1421308), (20, 1065981), (21, 1015220), (23, 926940), (28, 761415), (30, 710654), (35, 609132), (42, 507610), (46, 463470), (60, 355327), (69, 308980), (70, 304566), (84, 253805), (92, 231735), (105, 203044), (115, 185388), (138, 154490), (140, 152283), (161, 132420), (210, 101522), (230, 92694), (276, 77245), (322, 66210), (345, 61796), (420, 50761), (460, 46347), (483, 44140), (644, 33105), (690, 30898), (805, 26484), (966, 22070), (1380, 15449), (1610, 13242), (1932, 11035), (2207, 9660), (2415, 8828), (3220, 6621), (4414, 4830)]