21928140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9371}}^1$

素因数の和:9399

約数の個数: 72

約数和(自身を含む): 71639568

約数和(自身を除く): 49711428

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 9371, 18742, 28113, 37484, 46855, 56226, 84339, 93710, 112452, 121823, 140565, 168678, 187420, 243646, 281130, 337356, 365469, 421695, 487292, 562260, 609115, 730938, 843390, 1096407, 1218230, 1461876, 1686780, 1827345, 2192814, 2436460, 3654690, 4385628, 5482035, 7309380, 10964070, 21928140]

約数ペア:

[(1, 21928140), (2, 10964070), (3, 7309380), (4, 5482035), (5, 4385628), (6, 3654690), (9, 2436460), (10, 2192814), (12, 1827345), (13, 1686780), (15, 1461876), (18, 1218230), (20, 1096407), (26, 843390), (30, 730938), (36, 609115), (39, 562260), (45, 487292), (52, 421695), (60, 365469), (65, 337356), (78, 281130), (90, 243646), (117, 187420), (130, 168678), (156, 140565), (180, 121823), (195, 112452), (234, 93710), (260, 84339), (390, 56226), (468, 46855), (585, 37484), (780, 28113), (1170, 18742), (2340, 9371)]