21167016325

素因数分解:

$5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{6959}}^1$

素因数の和:7187

約数の個数: 72

約数和(自身を含む): 33057884160

約数和(自身を除く): 11890867835

約数列:

[1, 5, 7, 13, 25, 35, 49, 65, 91, 175, 191, 245, 325, 455, 637, 955, 1225, 1337, 2275, 2483, 3185, 4775, 6685, 6959, 9359, 12415, 15925, 17381, 33425, 34795, 46795, 48713, 62075, 86905, 90467, 121667, 173975, 233975, 243565, 340991, 434525, 452335, 608335, 633269, 1217825, 1329169, 1704955, 2261675, 3041675, 3166345, 4432883, 6645845, 8524775, 9304183, 15831725, 17279197, 22164415, 33229225, 46520915, 65129281, 86395985, 110822075, 120954379, 232604575, 325646405, 431979925, 604771895, 846680653, 1628232025, 3023859475, 4233403265, 21167016325]

約数ペア:

[(1, 21167016325), (5, 4233403265), (7, 3023859475), (13, 1628232025), (25, 846680653), (35, 604771895), (49, 431979925), (65, 325646405), (91, 232604575), (175, 120954379), (191, 110822075), (245, 86395985), (325, 65129281), (455, 46520915), (637, 33229225), (955, 22164415), (1225, 17279197), (1337, 15831725), (2275, 9304183), (2483, 8524775), (3185, 6645845), (4775, 4432883), (6685, 3166345), (6959, 3041675), (9359, 2261675), (12415, 1704955), (15925, 1329169), (17381, 1217825), (33425, 633269), (34795, 608335), (46795, 452335), (48713, 434525), (62075, 340991), (86905, 243565), (90467, 233975), (121667, 173975)]