21223800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{907}}^1$

素因数の和:942

約数の個数: 144

約数和(自身を含む): 76844040

約数和(自身を除く): 55620240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 25, 26, 30, 36, 39, 40, 45, 50, 52, 60, 65, 72, 75, 78, 90, 100, 104, 117, 120, 130, 150, 156, 180, 195, 200, 225, 234, 260, 300, 312, 325, 360, 390, 450, 468, 520, 585, 600, 650, 780, 900, 907, 936, 975, 1170, 1300, 1560, 1800, 1814, 1950, 2340, 2600, 2721, 2925, 3628, 3900, 4535, 4680, 5442, 5850, 7256, 7800, 8163, 9070, 10884, 11700, 11791, 13605, 16326, 18140, 21768, 22675, 23400, 23582, 27210, 32652, 35373, 36280, 40815, 45350, 47164, 54420, 58955, 65304, 68025, 70746, 81630, 90700, 94328, 106119, 108840, 117910, 136050, 141492, 163260, 176865, 181400, 204075, 212238, 235820, 272100, 282984, 294775, 326520, 353730, 408150, 424476, 471640, 530595, 544200, 589550, 707460, 816300, 848952, 884325, 1061190, 1179100, 1414920, 1632600, 1768650, 2122380, 2358200, 2652975, 3537300, 4244760, 5305950, 7074600, 10611900, 21223800]

約数ペア:

[(1, 21223800), (2, 10611900), (3, 7074600), (4, 5305950), (5, 4244760), (6, 3537300), (8, 2652975), (9, 2358200), (10, 2122380), (12, 1768650), (13, 1632600), (15, 1414920), (18, 1179100), (20, 1061190), (24, 884325), (25, 848952), (26, 816300), (30, 707460), (36, 589550), (39, 544200), (40, 530595), (45, 471640), (50, 424476), (52, 408150), (60, 353730), (65, 326520), (72, 294775), (75, 282984), (78, 272100), (90, 235820), (100, 212238), (104, 204075), (117, 181400), (120, 176865), (130, 163260), (150, 141492), (156, 136050), (180, 117910), (195, 108840), (200, 106119), (225, 94328), (234, 90700), (260, 81630), (300, 70746), (312, 68025), (325, 65304), (360, 58955), (390, 54420), (450, 47164), (468, 45350), (520, 40815), (585, 36280), (600, 35373), (650, 32652), (780, 27210), (900, 23582), (907, 23400), (936, 22675), (975, 21768), (1170, 18140), (1300, 16326), (1560, 13605), (1800, 11791), (1814, 11700), (1950, 10884), (2340, 9070), (2600, 8163), (2721, 7800), (2925, 7256), (3628, 5850), (3900, 5442), (4535, 4680)]