21431130

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:324

約数の個数: 96

約数和(自身を含む): 61067520

約数和(自身を除く): 39636390

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 61, 70, 98, 105, 122, 147, 183, 210, 239, 245, 294, 305, 366, 427, 478, 490, 610, 717, 735, 854, 915, 1195, 1281, 1434, 1470, 1673, 1830, 2135, 2390, 2562, 2989, 3346, 3585, 4270, 5019, 5978, 6405, 7170, 8365, 8967, 10038, 11711, 12810, 14579, 14945, 16730, 17934, 23422, 25095, 29158, 29890, 35133, 43737, 44835, 50190, 58555, 70266, 72895, 87474, 89670, 102053, 117110, 145790, 175665, 204106, 218685, 306159, 351330, 437370, 510265, 612318, 714371, 1020530, 1428742, 1530795, 2143113, 3061590, 3571855, 4286226, 7143710, 10715565, 21431130]

約数ペア:

[(1, 21431130), (2, 10715565), (3, 7143710), (5, 4286226), (6, 3571855), (7, 3061590), (10, 2143113), (14, 1530795), (15, 1428742), (21, 1020530), (30, 714371), (35, 612318), (42, 510265), (49, 437370), (61, 351330), (70, 306159), (98, 218685), (105, 204106), (122, 175665), (147, 145790), (183, 117110), (210, 102053), (239, 89670), (245, 87474), (294, 72895), (305, 70266), (366, 58555), (427, 50190), (478, 44835), (490, 43737), (610, 35133), (717, 29890), (735, 29158), (854, 25095), (915, 23422), (1195, 17934), (1281, 16730), (1434, 14945), (1470, 14579), (1673, 12810), (1830, 11711), (2135, 10038), (2390, 8967), (2562, 8365), (2989, 7170), (3346, 6405), (3585, 5978), (4270, 5019)]