21078018

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^4\times {\mathrm{41}}^1$

素因数の和:101

約数の個数: 60

約数和(自身を含む): 50681358

約数和(自身を除く): 29603340

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 41, 78, 82, 117, 123, 169, 234, 246, 338, 369, 507, 533, 738, 1014, 1066, 1521, 1599, 2197, 3042, 3198, 4394, 4797, 6591, 6929, 9594, 13182, 13858, 19773, 20787, 28561, 39546, 41574, 57122, 62361, 85683, 90077, 124722, 171366, 180154, 257049, 270231, 514098, 540462, 810693, 1171001, 1621386, 2342002, 3513003, 7026006, 10539009, 21078018]

約数ペア:

[(1, 21078018), (2, 10539009), (3, 7026006), (6, 3513003), (9, 2342002), (13, 1621386), (18, 1171001), (26, 810693), (39, 540462), (41, 514098), (78, 270231), (82, 257049), (117, 180154), (123, 171366), (169, 124722), (234, 90077), (246, 85683), (338, 62361), (369, 57122), (507, 41574), (533, 39546), (738, 28561), (1014, 20787), (1066, 19773), (1521, 13858), (1599, 13182), (2197, 9594), (3042, 6929), (3198, 6591), (4394, 4797)]