21993010976

素因数分解:

$2^5\times {\mathrm{17}}^2\times {\mathrm{79}}^1\times {\mathrm{30103}}^1$

素因数の和:30226

約数の個数: 72

約数和(自身を含む): 46579317120

約数和(自身を除く): 24586306144

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 79, 136, 158, 272, 289, 316, 544, 578, 632, 1156, 1264, 1343, 2312, 2528, 2686, 4624, 5372, 9248, 10744, 21488, 22831, 30103, 42976, 45662, 60206, 91324, 120412, 182648, 240824, 365296, 481648, 511751, 730592, 963296, 1023502, 2047004, 2378137, 4094008, 4756274, 8188016, 8699767, 9512548, 16376032, 17399534, 19025096, 34799068, 38050192, 40428329, 69598136, 76100384, 80856658, 139196272, 161713316, 278392544, 323426632, 646853264, 687281593, 1293706528, 1374563186, 2749126372, 5498252744, 10996505488, 21993010976]

約数ペア:

[(1, 21993010976), (2, 10996505488), (4, 5498252744), (8, 2749126372), (16, 1374563186), (17, 1293706528), (32, 687281593), (34, 646853264), (68, 323426632), (79, 278392544), (136, 161713316), (158, 139196272), (272, 80856658), (289, 76100384), (316, 69598136), (544, 40428329), (578, 38050192), (632, 34799068), (1156, 19025096), (1264, 17399534), (1343, 16376032), (2312, 9512548), (2528, 8699767), (2686, 8188016), (4624, 4756274), (5372, 4094008), (9248, 2378137), (10744, 2047004), (21488, 1023502), (22831, 963296), (30103, 730592), (42976, 511751), (45662, 481648), (60206, 365296), (91324, 240824), (120412, 182648)]