21323160

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{971}}^1$

素因数の和:1049

約数の個数: 96

約数和(自身を含む): 70508880

約数和(自身を除く): 49185720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 61, 72, 90, 120, 122, 180, 183, 244, 305, 360, 366, 488, 549, 610, 732, 915, 971, 1098, 1220, 1464, 1830, 1942, 2196, 2440, 2745, 2913, 3660, 3884, 4392, 4855, 5490, 5826, 7320, 7768, 8739, 9710, 10980, 11652, 14565, 17478, 19420, 21960, 23304, 29130, 34956, 38840, 43695, 58260, 59231, 69912, 87390, 116520, 118462, 174780, 177693, 236924, 296155, 349560, 355386, 473848, 533079, 592310, 710772, 888465, 1066158, 1184620, 1421544, 1776930, 2132316, 2369240, 2665395, 3553860, 4264632, 5330790, 7107720, 10661580, 21323160]

約数ペア:

[(1, 21323160), (2, 10661580), (3, 7107720), (4, 5330790), (5, 4264632), (6, 3553860), (8, 2665395), (9, 2369240), (10, 2132316), (12, 1776930), (15, 1421544), (18, 1184620), (20, 1066158), (24, 888465), (30, 710772), (36, 592310), (40, 533079), (45, 473848), (60, 355386), (61, 349560), (72, 296155), (90, 236924), (120, 177693), (122, 174780), (180, 118462), (183, 116520), (244, 87390), (305, 69912), (360, 59231), (366, 58260), (488, 43695), (549, 38840), (610, 34956), (732, 29130), (915, 23304), (971, 21960), (1098, 19420), (1220, 17478), (1464, 14565), (1830, 11652), (1942, 10980), (2196, 9710), (2440, 8739), (2745, 7768), (2913, 7320), (3660, 5826), (3884, 5490), (4392, 4855)]