21291060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{311}}^1$

素因数の和:493

約数の個数: 96

約数和(自身を含む): 68769792

約数和(自身を除く): 47478732

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 163, 210, 311, 326, 420, 489, 622, 652, 815, 933, 978, 1141, 1244, 1555, 1630, 1866, 1956, 2177, 2282, 2445, 3110, 3260, 3423, 3732, 4354, 4564, 4665, 4890, 5705, 6220, 6531, 6846, 8708, 9330, 9780, 10885, 11410, 13062, 13692, 17115, 18660, 21770, 22820, 26124, 32655, 34230, 43540, 50693, 65310, 68460, 101386, 130620, 152079, 202772, 253465, 304158, 354851, 506930, 608316, 709702, 760395, 1013860, 1064553, 1419404, 1520790, 1774255, 2129106, 3041580, 3548510, 4258212, 5322765, 7097020, 10645530, 21291060]

約数ペア:

[(1, 21291060), (2, 10645530), (3, 7097020), (4, 5322765), (5, 4258212), (6, 3548510), (7, 3041580), (10, 2129106), (12, 1774255), (14, 1520790), (15, 1419404), (20, 1064553), (21, 1013860), (28, 760395), (30, 709702), (35, 608316), (42, 506930), (60, 354851), (70, 304158), (84, 253465), (105, 202772), (140, 152079), (163, 130620), (210, 101386), (311, 68460), (326, 65310), (420, 50693), (489, 43540), (622, 34230), (652, 32655), (815, 26124), (933, 22820), (978, 21770), (1141, 18660), (1244, 17115), (1555, 13692), (1630, 13062), (1866, 11410), (1956, 10885), (2177, 9780), (2282, 9330), (2445, 8708), (3110, 6846), (3260, 6531), (3423, 6220), (3732, 5705), (4354, 4890), (4564, 4665)]