221348925

素因数分解:

$3^2\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1181}}^1$

素因数の和:1228

約数の個数: 108

約数和(自身を含む): 488730996

約数和(自身を除く): 267382071

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 25, 35, 45, 49, 51, 63, 75, 85, 105, 119, 147, 153, 175, 225, 245, 255, 315, 357, 425, 441, 525, 595, 735, 765, 833, 1071, 1181, 1225, 1275, 1575, 1785, 2205, 2499, 2975, 3543, 3675, 3825, 4165, 5355, 5905, 7497, 8267, 8925, 10629, 11025, 12495, 17715, 20077, 20825, 24801, 26775, 29525, 37485, 41335, 53145, 57869, 60231, 62475, 74403, 88575, 100385, 124005, 140539, 173607, 180693, 187425, 206675, 265725, 289345, 301155, 372015, 421617, 501925, 520821, 620025, 702695, 868035, 903465, 983773, 1264851, 1446725, 1505775, 1860075, 2108085, 2604105, 2951319, 3513475, 4340175, 4517325, 4918865, 6324255, 8853957, 10540425, 13020525, 14756595, 24594325, 31621275, 44269785, 73782975, 221348925]

約数ペア:

[(1, 221348925), (3, 73782975), (5, 44269785), (7, 31621275), (9, 24594325), (15, 14756595), (17, 13020525), (21, 10540425), (25, 8853957), (35, 6324255), (45, 4918865), (49, 4517325), (51, 4340175), (63, 3513475), (75, 2951319), (85, 2604105), (105, 2108085), (119, 1860075), (147, 1505775), (153, 1446725), (175, 1264851), (225, 983773), (245, 903465), (255, 868035), (315, 702695), (357, 620025), (425, 520821), (441, 501925), (525, 421617), (595, 372015), (735, 301155), (765, 289345), (833, 265725), (1071, 206675), (1181, 187425), (1225, 180693), (1275, 173607), (1575, 140539), (1785, 124005), (2205, 100385), (2499, 88575), (2975, 74403), (3543, 62475), (3675, 60231), (3825, 57869), (4165, 53145), (5355, 41335), (5905, 37485), (7497, 29525), (8267, 26775), (8925, 24801), (10629, 20825), (11025, 20077), (12495, 17715)]