20117988

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{503}}^1$

素因数の和:625

約数の個数: 72

約数和(自身を含む): 56137536

約数和(自身を除く): 36019548

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 101, 132, 198, 202, 303, 396, 404, 503, 606, 909, 1006, 1111, 1212, 1509, 1818, 2012, 2222, 3018, 3333, 3636, 4444, 4527, 5533, 6036, 6666, 9054, 9999, 11066, 13332, 16599, 18108, 19998, 22132, 33198, 39996, 49797, 50803, 66396, 99594, 101606, 152409, 199188, 203212, 304818, 457227, 558833, 609636, 914454, 1117666, 1676499, 1828908, 2235332, 3352998, 5029497, 6705996, 10058994, 20117988]

約数ペア:

[(1, 20117988), (2, 10058994), (3, 6705996), (4, 5029497), (6, 3352998), (9, 2235332), (11, 1828908), (12, 1676499), (18, 1117666), (22, 914454), (33, 609636), (36, 558833), (44, 457227), (66, 304818), (99, 203212), (101, 199188), (132, 152409), (198, 101606), (202, 99594), (303, 66396), (396, 50803), (404, 49797), (503, 39996), (606, 33198), (909, 22132), (1006, 19998), (1111, 18108), (1212, 16599), (1509, 13332), (1818, 11066), (2012, 9999), (2222, 9054), (3018, 6666), (3333, 6036), (3636, 5533), (4444, 4527)]