221635908

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{1181}}^1$

素因数の和:1605

約数の個数: 72

約数和(自身を含む): 605358936

約数和(自身を除く): 383723028

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 401, 468, 802, 1181, 1203, 1604, 2362, 2406, 3543, 3609, 4724, 4812, 5213, 7086, 7218, 10426, 10629, 14172, 14436, 15353, 15639, 20852, 21258, 30706, 31278, 42516, 46059, 46917, 61412, 62556, 92118, 93834, 138177, 184236, 187668, 276354, 473581, 552708, 947162, 1420743, 1894324, 2841486, 4262229, 5682972, 6156553, 8524458, 12313106, 17048916, 18469659, 24626212, 36939318, 55408977, 73878636, 110817954, 221635908]

約数ペア:

[(1, 221635908), (2, 110817954), (3, 73878636), (4, 55408977), (6, 36939318), (9, 24626212), (12, 18469659), (13, 17048916), (18, 12313106), (26, 8524458), (36, 6156553), (39, 5682972), (52, 4262229), (78, 2841486), (117, 1894324), (156, 1420743), (234, 947162), (401, 552708), (468, 473581), (802, 276354), (1181, 187668), (1203, 184236), (1604, 138177), (2362, 93834), (2406, 92118), (3543, 62556), (3609, 61412), (4724, 46917), (4812, 46059), (5213, 42516), (7086, 31278), (7218, 30706), (10426, 21258), (10629, 20852), (14172, 15639), (14436, 15353)]