21489390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18367}}^1$

素因数の和:18393

約数の個数: 48

約数和(自身を含む): 60173568

約数和(自身を除く): 38684178

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 18367, 36734, 55101, 91835, 110202, 165303, 183670, 238771, 275505, 330606, 477542, 551010, 716313, 826515, 1193855, 1432626, 1653030, 2148939, 2387710, 3581565, 4297878, 7163130, 10744695, 21489390]

約数ペア:

[(1, 21489390), (2, 10744695), (3, 7163130), (5, 4297878), (6, 3581565), (9, 2387710), (10, 2148939), (13, 1653030), (15, 1432626), (18, 1193855), (26, 826515), (30, 716313), (39, 551010), (45, 477542), (65, 330606), (78, 275505), (90, 238771), (117, 183670), (130, 165303), (195, 110202), (234, 91835), (390, 55101), (585, 36734), (1170, 18367)]