21000228180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{231331}}^1$

素因数の和:231449

約数の個数: 96

約数和(自身を含む): 62959317120

約数和(自身を除く): 41959088940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 89, 102, 170, 178, 204, 255, 267, 340, 356, 445, 510, 534, 890, 1020, 1068, 1335, 1513, 1780, 2670, 3026, 4539, 5340, 6052, 7565, 9078, 15130, 18156, 22695, 30260, 45390, 90780, 231331, 462662, 693993, 925324, 1156655, 1387986, 2313310, 2775972, 3469965, 3932627, 4626620, 6939930, 7865254, 11797881, 13879860, 15730508, 19663135, 20588459, 23595762, 39326270, 41176918, 47191524, 58989405, 61765377, 78652540, 82353836, 102942295, 117978810, 123530754, 205884590, 235957620, 247061508, 308826885, 350003803, 411769180, 617653770, 700007606, 1050011409, 1235307540, 1400015212, 1750019015, 2100022818, 3500038030, 4200045636, 5250057045, 7000076060, 10500114090, 21000228180]

約数ペア:

[(1, 21000228180), (2, 10500114090), (3, 7000076060), (4, 5250057045), (5, 4200045636), (6, 3500038030), (10, 2100022818), (12, 1750019015), (15, 1400015212), (17, 1235307540), (20, 1050011409), (30, 700007606), (34, 617653770), (51, 411769180), (60, 350003803), (68, 308826885), (85, 247061508), (89, 235957620), (102, 205884590), (170, 123530754), (178, 117978810), (204, 102942295), (255, 82353836), (267, 78652540), (340, 61765377), (356, 58989405), (445, 47191524), (510, 41176918), (534, 39326270), (890, 23595762), (1020, 20588459), (1068, 19663135), (1335, 15730508), (1513, 13879860), (1780, 11797881), (2670, 7865254), (3026, 6939930), (4539, 4626620), (5340, 3932627), (6052, 3469965), (7565, 2775972), (9078, 2313310), (15130, 1387986), (18156, 1156655), (22695, 925324), (30260, 693993), (45390, 462662), (90780, 231331)]