21883014725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{1181}}^1$

素因数の和:1359

約数の個数: 96

約数和(自身を含む): 32798400768

約数和(自身を除く): 10915386043

約数列:

[1, 5, 11, 13, 25, 55, 65, 71, 73, 143, 275, 325, 355, 365, 715, 781, 803, 923, 949, 1181, 1775, 1825, 3575, 3905, 4015, 4615, 4745, 5183, 5905, 10153, 10439, 12991, 15353, 19525, 20075, 23075, 23725, 25915, 29525, 50765, 52195, 57013, 64955, 67379, 76765, 83851, 86213, 129575, 168883, 253825, 260975, 285065, 324775, 336895, 383825, 419255, 431065, 741169, 844415, 922361, 948343, 1090063, 1120769, 1425325, 1684475, 2096275, 2155325, 3705845, 4222075, 4611805, 4741715, 5450315, 5603845, 6121123, 11990693, 12328459, 18529225, 23059025, 23708575, 27251575, 28019225, 30605615, 59953465, 61642295, 67332353, 79574599, 153028075, 299767325, 308211475, 336661765, 397872995, 875320589, 1683308825, 1989364975, 4376602945, 21883014725]

約数ペア:

[(1, 21883014725), (5, 4376602945), (11, 1989364975), (13, 1683308825), (25, 875320589), (55, 397872995), (65, 336661765), (71, 308211475), (73, 299767325), (143, 153028075), (275, 79574599), (325, 67332353), (355, 61642295), (365, 59953465), (715, 30605615), (781, 28019225), (803, 27251575), (923, 23708575), (949, 23059025), (1181, 18529225), (1775, 12328459), (1825, 11990693), (3575, 6121123), (3905, 5603845), (4015, 5450315), (4615, 4741715), (4745, 4611805), (5183, 4222075), (5905, 3705845), (10153, 2155325), (10439, 2096275), (12991, 1684475), (15353, 1425325), (19525, 1120769), (20075, 1090063), (23075, 948343), (23725, 922361), (25915, 844415), (29525, 741169), (50765, 431065), (52195, 419255), (57013, 383825), (64955, 336895), (67379, 324775), (76765, 285065), (83851, 260975), (86213, 253825), (129575, 168883)]