21561390

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{467}}^1$

素因数の和:508

約数の個数: 96

約数和(自身を含む): 61326720

約数和(自身を除く): 39765330

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 81, 90, 95, 114, 135, 162, 171, 190, 243, 270, 285, 342, 405, 467, 486, 513, 570, 810, 855, 934, 1026, 1215, 1401, 1539, 1710, 2335, 2430, 2565, 2802, 3078, 4203, 4617, 4670, 5130, 7005, 7695, 8406, 8873, 9234, 12609, 14010, 15390, 17746, 21015, 23085, 25218, 26619, 37827, 42030, 44365, 46170, 53238, 63045, 75654, 79857, 88730, 113481, 126090, 133095, 159714, 189135, 226962, 239571, 266190, 378270, 399285, 479142, 567405, 718713, 798570, 1134810, 1197855, 1437426, 2156139, 2395710, 3593565, 4312278, 7187130, 10780695, 21561390]

約数ペア:

[(1, 21561390), (2, 10780695), (3, 7187130), (5, 4312278), (6, 3593565), (9, 2395710), (10, 2156139), (15, 1437426), (18, 1197855), (19, 1134810), (27, 798570), (30, 718713), (38, 567405), (45, 479142), (54, 399285), (57, 378270), (81, 266190), (90, 239571), (95, 226962), (114, 189135), (135, 159714), (162, 133095), (171, 126090), (190, 113481), (243, 88730), (270, 79857), (285, 75654), (342, 63045), (405, 53238), (467, 46170), (486, 44365), (513, 42030), (570, 37827), (810, 26619), (855, 25218), (934, 23085), (1026, 21015), (1215, 17746), (1401, 15390), (1539, 14010), (1710, 12609), (2335, 9234), (2430, 8873), (2565, 8406), (2802, 7695), (3078, 7005), (4203, 5130), (4617, 4670)]