21294780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1187}}^1$

素因数の和:1235

約数の個数: 96

約数和(自身を含む): 67060224

約数和(自身を除く): 45765444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 23, 26, 30, 39, 46, 52, 60, 65, 69, 78, 92, 115, 130, 138, 156, 195, 230, 260, 276, 299, 345, 390, 460, 598, 690, 780, 897, 1187, 1196, 1380, 1495, 1794, 2374, 2990, 3561, 3588, 4485, 4748, 5935, 5980, 7122, 8970, 11870, 14244, 15431, 17805, 17940, 23740, 27301, 30862, 35610, 46293, 54602, 61724, 71220, 77155, 81903, 92586, 109204, 136505, 154310, 163806, 185172, 231465, 273010, 308620, 327612, 354913, 409515, 462930, 546020, 709826, 819030, 925860, 1064739, 1419652, 1638060, 1774565, 2129478, 3549130, 4258956, 5323695, 7098260, 10647390, 21294780]

約数ペア:

[(1, 21294780), (2, 10647390), (3, 7098260), (4, 5323695), (5, 4258956), (6, 3549130), (10, 2129478), (12, 1774565), (13, 1638060), (15, 1419652), (20, 1064739), (23, 925860), (26, 819030), (30, 709826), (39, 546020), (46, 462930), (52, 409515), (60, 354913), (65, 327612), (69, 308620), (78, 273010), (92, 231465), (115, 185172), (130, 163806), (138, 154310), (156, 136505), (195, 109204), (230, 92586), (260, 81903), (276, 77155), (299, 71220), (345, 61724), (390, 54602), (460, 46293), (598, 35610), (690, 30862), (780, 27301), (897, 23740), (1187, 17940), (1196, 17805), (1380, 15431), (1495, 14244), (1794, 11870), (2374, 8970), (2990, 7122), (3561, 5980), (3588, 5935), (4485, 4748)]