21266372

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 19376188

約数列:

[1, 2, 4, 31, 41, 47, 62, 82, 89, 94, 124, 164, 178, 188, 356, 1271, 1457, 1927, 2542, 2759, 2914, 3649, 3854, 4183, 5084, 5518, 5828, 7298, 7708, 8366, 11036, 14596, 16732, 59737, 113119, 119474, 129673, 171503, 226238, 238948, 259346, 343006, 452476, 518692, 686012, 5316593, 10633186, 21266372]

約数ペア:

[(1, 21266372), (2, 10633186), (4, 5316593), (31, 686012), (41, 518692), (47, 452476), (62, 343006), (82, 259346), (89, 238948), (94, 226238), (124, 171503), (164, 129673), (178, 119474), (188, 113119), (356, 59737), (1271, 16732), (1457, 14596), (1927, 11036), (2542, 8366), (2759, 7708), (2914, 7298), (3649, 5828), (3854, 5518), (4183, 5084)]