21178170

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{787}}^1$

素因数の和:836

約数の個数: 96

約数和(自身を含む): 61955712

約数和(自身を除く): 40777542

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 23, 26, 30, 39, 45, 46, 65, 69, 78, 90, 115, 117, 130, 138, 195, 207, 230, 234, 299, 345, 390, 414, 585, 598, 690, 787, 897, 1035, 1170, 1495, 1574, 1794, 2070, 2361, 2691, 2990, 3935, 4485, 4722, 5382, 7083, 7870, 8970, 10231, 11805, 13455, 14166, 18101, 20462, 23610, 26910, 30693, 35415, 36202, 51155, 54303, 61386, 70830, 90505, 92079, 102310, 108606, 153465, 162909, 181010, 184158, 235313, 271515, 306930, 325818, 460395, 470626, 543030, 705939, 814545, 920790, 1176565, 1411878, 1629090, 2117817, 2353130, 3529695, 4235634, 7059390, 10589085, 21178170]

約数ペア:

[(1, 21178170), (2, 10589085), (3, 7059390), (5, 4235634), (6, 3529695), (9, 2353130), (10, 2117817), (13, 1629090), (15, 1411878), (18, 1176565), (23, 920790), (26, 814545), (30, 705939), (39, 543030), (45, 470626), (46, 460395), (65, 325818), (69, 306930), (78, 271515), (90, 235313), (115, 184158), (117, 181010), (130, 162909), (138, 153465), (195, 108606), (207, 102310), (230, 92079), (234, 90505), (299, 70830), (345, 61386), (390, 54303), (414, 51155), (585, 36202), (598, 35415), (690, 30693), (787, 26910), (897, 23610), (1035, 20462), (1170, 18101), (1495, 14166), (1574, 13455), (1794, 11805), (2070, 10231), (2361, 8970), (2691, 7870), (2990, 7083), (3935, 5382), (4485, 4722)]