21918292578

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4460377}}^1$

素因数の和:4460408

約数の個数: 64

約数和(自身を含む): 59947480320

約数和(自身を除く): 38029187742

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 54, 63, 78, 91, 117, 126, 182, 189, 234, 273, 351, 378, 546, 702, 819, 1638, 2457, 4914, 4460377, 8920754, 13381131, 26762262, 31222639, 40143393, 57984901, 62445278, 80286786, 93667917, 115969802, 120430179, 173954703, 187335834, 240860358, 281003751, 347909406, 405894307, 521864109, 562007502, 811788614, 843011253, 1043728218, 1217682921, 1565592327, 1686022506, 2435365842, 3131184654, 3653048763, 7306097526, 10959146289, 21918292578]

約数ペア:

[(1, 21918292578), (2, 10959146289), (3, 7306097526), (6, 3653048763), (7, 3131184654), (9, 2435365842), (13, 1686022506), (14, 1565592327), (18, 1217682921), (21, 1043728218), (26, 843011253), (27, 811788614), (39, 562007502), (42, 521864109), (54, 405894307), (63, 347909406), (78, 281003751), (91, 240860358), (117, 187335834), (126, 173954703), (182, 120430179), (189, 115969802), (234, 93667917), (273, 80286786), (351, 62445278), (378, 57984901), (546, 40143393), (702, 31222639), (819, 26762262), (1638, 13381131), (2457, 8920754), (4914, 4460377)]