219953937

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:430

約数の個数: 64

約数和(自身を含む): 371220480

約数和(自身を除く): 151266543

約数列:

[1, 3, 7, 19, 21, 37, 47, 57, 111, 133, 141, 259, 317, 329, 399, 703, 777, 893, 951, 987, 1739, 2109, 2219, 2679, 4921, 5217, 6023, 6251, 6657, 11729, 12173, 14763, 14899, 18069, 18753, 33041, 35187, 36519, 42161, 44697, 82103, 99123, 104293, 126483, 222851, 231287, 246309, 283081, 312879, 551263, 668553, 693861, 849243, 1559957, 1653789, 1981567, 3858841, 4679871, 5944701, 10473997, 11576523, 31421991, 73317979, 219953937]

約数ペア:

[(1, 219953937), (3, 73317979), (7, 31421991), (19, 11576523), (21, 10473997), (37, 5944701), (47, 4679871), (57, 3858841), (111, 1981567), (133, 1653789), (141, 1559957), (259, 849243), (317, 693861), (329, 668553), (399, 551263), (703, 312879), (777, 283081), (893, 246309), (951, 231287), (987, 222851), (1739, 126483), (2109, 104293), (2219, 99123), (2679, 82103), (4921, 44697), (5217, 42161), (6023, 36519), (6251, 35187), (6657, 33041), (11729, 18753), (12173, 18069), (14763, 14899)]