21076590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:345

約数の個数: 64

約数和(自身を含む): 52918272

約数和(自身を除く): 31841682

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 131, 155, 173, 186, 262, 310, 346, 393, 465, 519, 655, 786, 865, 930, 1038, 1310, 1730, 1965, 2595, 3930, 4061, 5190, 5363, 8122, 10726, 12183, 16089, 20305, 22663, 24366, 26815, 32178, 40610, 45326, 53630, 60915, 67989, 80445, 113315, 121830, 135978, 160890, 226630, 339945, 679890, 702553, 1405106, 2107659, 3512765, 4215318, 7025530, 10538295, 21076590]

約数ペア:

[(1, 21076590), (2, 10538295), (3, 7025530), (5, 4215318), (6, 3512765), (10, 2107659), (15, 1405106), (30, 702553), (31, 679890), (62, 339945), (93, 226630), (131, 160890), (155, 135978), (173, 121830), (186, 113315), (262, 80445), (310, 67989), (346, 60915), (393, 53630), (465, 45326), (519, 40610), (655, 32178), (786, 26815), (865, 24366), (930, 22663), (1038, 20305), (1310, 16089), (1730, 12183), (1965, 10726), (2595, 8122), (3930, 5363), (4061, 5190)]