21620978964

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{159857}}^1$

素因数の和:159914

約数の個数: 108

約数和(自身を含む): 62523341244

約数和(自身を除く): 40902362280

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 51, 52, 68, 78, 102, 117, 153, 156, 204, 221, 234, 289, 306, 442, 468, 578, 612, 663, 867, 884, 1156, 1326, 1734, 1989, 2601, 2652, 3468, 3757, 3978, 5202, 7514, 7956, 10404, 11271, 15028, 22542, 33813, 45084, 67626, 135252, 159857, 319714, 479571, 639428, 959142, 1438713, 1918284, 2078141, 2717569, 2877426, 4156282, 5435138, 5754852, 6234423, 8152707, 8312564, 10870276, 12468846, 16305414, 18703269, 24458121, 24937692, 32610828, 35328397, 37406538, 46198673, 48916242, 70656794, 74813076, 92397346, 97832484, 105985191, 138596019, 141313588, 184794692, 211970382, 277192038, 317955573, 415788057, 423940764, 554384076, 600582749, 635911146, 831576114, 1201165498, 1271822292, 1663152228, 1801748247, 2402330996, 3603496494, 5405244741, 7206992988, 10810489482, 21620978964]

約数ペア:

[(1, 21620978964), (2, 10810489482), (3, 7206992988), (4, 5405244741), (6, 3603496494), (9, 2402330996), (12, 1801748247), (13, 1663152228), (17, 1271822292), (18, 1201165498), (26, 831576114), (34, 635911146), (36, 600582749), (39, 554384076), (51, 423940764), (52, 415788057), (68, 317955573), (78, 277192038), (102, 211970382), (117, 184794692), (153, 141313588), (156, 138596019), (204, 105985191), (221, 97832484), (234, 92397346), (289, 74813076), (306, 70656794), (442, 48916242), (468, 46198673), (578, 37406538), (612, 35328397), (663, 32610828), (867, 24937692), (884, 24458121), (1156, 18703269), (1326, 16305414), (1734, 12468846), (1989, 10870276), (2601, 8312564), (2652, 8152707), (3468, 6234423), (3757, 5754852), (3978, 5435138), (5202, 4156282), (7514, 2877426), (7956, 2717569), (10404, 2078141), (11271, 1918284), (15028, 1438713), (22542, 959142), (33813, 639428), (45084, 479571), (67626, 319714), (135252, 159857)]