1620809421

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{2819}}^1$

素因数の和:2990

約数の個数: 64

約数和(自身を含む): 2858803200

約数和(自身を除く): 1237993779

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 77, 131, 133, 209, 231, 393, 399, 627, 917, 1441, 1463, 2489, 2751, 2819, 4323, 4389, 7467, 8457, 10087, 17423, 19733, 27379, 30261, 31009, 52269, 53561, 59199, 82137, 93027, 160683, 191653, 217063, 369289, 374927, 574959, 589171, 651189, 1107867, 1124781, 1767513, 2585023, 4062179, 4124197, 7016491, 7755069, 12186537, 12372591, 21049473, 28435253, 49115437, 77181401, 85305759, 147346311, 231544203, 540269807, 1620809421]

約数ペア:

[(1, 1620809421), (3, 540269807), (7, 231544203), (11, 147346311), (19, 85305759), (21, 77181401), (33, 49115437), (57, 28435253), (77, 21049473), (131, 12372591), (133, 12186537), (209, 7755069), (231, 7016491), (393, 4124197), (399, 4062179), (627, 2585023), (917, 1767513), (1441, 1124781), (1463, 1107867), (2489, 651189), (2751, 589171), (2819, 574959), (4323, 374927), (4389, 369289), (7467, 217063), (8457, 191653), (10087, 160683), (17423, 93027), (19733, 82137), (27379, 59199), (30261, 53561), (31009, 52269)]