21361068

素因数分解:

$2^2\times 3^2\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:271

約数の個数: 72

約数和(自身を含む): 56019600

約数和(自身を除く): 34658532

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 59, 89, 113, 118, 177, 178, 226, 236, 267, 339, 354, 356, 452, 531, 534, 678, 708, 801, 1017, 1062, 1068, 1356, 1602, 2034, 2124, 3204, 4068, 5251, 6667, 10057, 10502, 13334, 15753, 20001, 20114, 21004, 26668, 30171, 31506, 40002, 40228, 47259, 60003, 60342, 63012, 80004, 90513, 94518, 120006, 120684, 181026, 189036, 240012, 362052, 593363, 1186726, 1780089, 2373452, 3560178, 5340267, 7120356, 10680534, 21361068]

約数ペア:

[(1, 21361068), (2, 10680534), (3, 7120356), (4, 5340267), (6, 3560178), (9, 2373452), (12, 1780089), (18, 1186726), (36, 593363), (59, 362052), (89, 240012), (113, 189036), (118, 181026), (177, 120684), (178, 120006), (226, 94518), (236, 90513), (267, 80004), (339, 63012), (354, 60342), (356, 60003), (452, 47259), (531, 40228), (534, 40002), (678, 31506), (708, 30171), (801, 26668), (1017, 21004), (1062, 20114), (1068, 20001), (1356, 15753), (1602, 13334), (2034, 10502), (2124, 10057), (3204, 6667), (4068, 5251)]