21249810

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{373}}^1$

素因数の和:600

約数の個数: 64

約数和(自身を含む): 57087360

約数和(自身を除く): 35837550

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 211, 270, 373, 422, 633, 746, 1055, 1119, 1266, 1865, 1899, 2110, 2238, 3165, 3357, 3730, 3798, 5595, 5697, 6330, 6714, 9495, 10071, 11190, 11394, 16785, 18990, 20142, 28485, 33570, 50355, 56970, 78703, 100710, 157406, 236109, 393515, 472218, 708327, 787030, 1180545, 1416654, 2124981, 2361090, 3541635, 4249962, 7083270, 10624905, 21249810]

約数ペア:

[(1, 21249810), (2, 10624905), (3, 7083270), (5, 4249962), (6, 3541635), (9, 2361090), (10, 2124981), (15, 1416654), (18, 1180545), (27, 787030), (30, 708327), (45, 472218), (54, 393515), (90, 236109), (135, 157406), (211, 100710), (270, 78703), (373, 56970), (422, 50355), (633, 33570), (746, 28485), (1055, 20142), (1119, 18990), (1266, 16785), (1865, 11394), (1899, 11190), (2110, 10071), (2238, 9495), (3165, 6714), (3357, 6330), (3730, 5697), (3798, 5595)]