21656700

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{617}}^1$

素因数の和:653

約数の個数: 144

約数和(自身を含む): 75099360

約数和(自身を除く): 53442660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 27, 30, 36, 39, 45, 50, 52, 54, 60, 65, 75, 78, 90, 100, 108, 117, 130, 135, 150, 156, 180, 195, 225, 234, 260, 270, 300, 325, 351, 390, 450, 468, 540, 585, 617, 650, 675, 702, 780, 900, 975, 1170, 1234, 1300, 1350, 1404, 1755, 1851, 1950, 2340, 2468, 2700, 2925, 3085, 3510, 3702, 3900, 5553, 5850, 6170, 7020, 7404, 8021, 8775, 9255, 11106, 11700, 12340, 15425, 16042, 16659, 17550, 18510, 22212, 24063, 27765, 30850, 32084, 33318, 35100, 37020, 40105, 46275, 48126, 55530, 61700, 66636, 72189, 80210, 83295, 92550, 96252, 111060, 120315, 138825, 144378, 160420, 166590, 185100, 200525, 216567, 240630, 277650, 288756, 333180, 360945, 401050, 416475, 433134, 481260, 555300, 601575, 721890, 802100, 832950, 866268, 1082835, 1203150, 1443780, 1665900, 1804725, 2165670, 2406300, 3609450, 4331340, 5414175, 7218900, 10828350, 21656700]

約数ペア:

[(1, 21656700), (2, 10828350), (3, 7218900), (4, 5414175), (5, 4331340), (6, 3609450), (9, 2406300), (10, 2165670), (12, 1804725), (13, 1665900), (15, 1443780), (18, 1203150), (20, 1082835), (25, 866268), (26, 832950), (27, 802100), (30, 721890), (36, 601575), (39, 555300), (45, 481260), (50, 433134), (52, 416475), (54, 401050), (60, 360945), (65, 333180), (75, 288756), (78, 277650), (90, 240630), (100, 216567), (108, 200525), (117, 185100), (130, 166590), (135, 160420), (150, 144378), (156, 138825), (180, 120315), (195, 111060), (225, 96252), (234, 92550), (260, 83295), (270, 80210), (300, 72189), (325, 66636), (351, 61700), (390, 55530), (450, 48126), (468, 46275), (540, 40105), (585, 37020), (617, 35100), (650, 33318), (675, 32084), (702, 30850), (780, 27765), (900, 24063), (975, 22212), (1170, 18510), (1234, 17550), (1300, 16659), (1350, 16042), (1404, 15425), (1755, 12340), (1851, 11700), (1950, 11106), (2340, 9255), (2468, 8775), (2700, 8021), (2925, 7404), (3085, 7020), (3510, 6170), (3702, 5850), (3900, 5553)]