21961620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7177}}^1$

素因数の和:7209

約数の個数: 72

約数和(自身を含む): 70545384

約数和(自身を除く): 48583764

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 7177, 14354, 21531, 28708, 35885, 43062, 64593, 71770, 86124, 107655, 122009, 129186, 143540, 215310, 244018, 258372, 322965, 366027, 430620, 488036, 610045, 645930, 732054, 1098081, 1220090, 1291860, 1464108, 1830135, 2196162, 2440180, 3660270, 4392324, 5490405, 7320540, 10980810, 21961620]

約数ペア:

[(1, 21961620), (2, 10980810), (3, 7320540), (4, 5490405), (5, 4392324), (6, 3660270), (9, 2440180), (10, 2196162), (12, 1830135), (15, 1464108), (17, 1291860), (18, 1220090), (20, 1098081), (30, 732054), (34, 645930), (36, 610045), (45, 488036), (51, 430620), (60, 366027), (68, 322965), (85, 258372), (90, 244018), (102, 215310), (153, 143540), (170, 129186), (180, 122009), (204, 107655), (255, 86124), (306, 71770), (340, 64593), (510, 43062), (612, 35885), (765, 28708), (1020, 21531), (1530, 14354), (3060, 7177)]